first commit for chrg

2025-08-16 22:58:22 +08:00
commit 52a3ed5862
2306 changed files with 1021208 additions and 0 deletions
@@ -0,0 +1,13 @@
+#ifndef __UTILS_H__
+#define __UTILS_H__
+
+#include <stdint.h>
+
+
+extern int hex_printf (const uint8_t *buff, int count);
+
+extern uint16_t crc16_xmodem (uint8_t *data, uint16_t length);
+
+extern uint32_t crc32_step (uint32_t in_crc, const void *buf, uint32_t size);
+
+#endif